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Mathlas MCP Server

by archerkattri Your server? Claim it
local only

Mathlas runs on your own machine — the client starts it, so there is no endpoint to ping. 258 installs a week from pypi. Last commit 18 Sep 2026.

Airtight math for AI agents: 3.68M-doc theorem search + numeric/Lean verification. No LLM, no key.

Installs per day peak 101 · avg 44 · -24% w/w
a month agotoday
258
Installs / week
pypi · mathlas-mcp
12
Stars
0 open issues
18 Sep 2026
Last commit
0 releases in 90 days
Apache-2.0
License
Python

What the code does

We read the source, 23 h ago · rules 3dff92dd89df

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

OUT_PNG = os.path.join(HERE, os.pardir, "architecture.png")

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add mathlas -- uvx mathlas-mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "mathlas": {
      "args": [
        "mathlas-mcp"
      ],
      "command": "uvx"
    }
  }
}
~/.codex/config.toml
[mcp_servers.mathlas]
command = "uvx"
args = ["mathlas-mcp"]
.cursor/mcp.json
{
  "mcpServers": {
    "mathlas": {
      "args": [
        "mathlas-mcp"
      ],
      "command": "uvx"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "mathlas": {
      "args": [
        "mathlas-mcp"
      ],
      "command": "uvx"
    }
  }
}

This one needs environment variables set before it will start: MATHLAS_SEED (Set to 1 to force the lightweight built-in seed corpus and never load the multi-GB prebuilt index (fast cold start).), MATHLAS_INDEX (Path to a prebuilt index .npz to serve for search_existing_math (optional; the seed corpus is used when absent).). The author declared them in the registry entry; get the values from the project itself.

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Mathlas — questions

Answers built from our own checks of this server.

Why is there no uptime for Mathlas?
Mathlas runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the pypi package mathlas-mcp was installed 258 times last week.
How do I connect Mathlas?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls mathlas-mcp straight from pypi; nothing to host, nothing to sign up for.
How many people use Mathlas?
The pypi package mathlas-mcp was installed 258 times in the last week. Week over week that is -24%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Mathlas open source?
Yes — it is published under the Apache-2.0 licence, written in Python and 12 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.